Hi, im recently update my fedora to version 26 and wesnoth auto upgrade to 1.13.8. Why the official repos in fedora 26 have the development version? I think it must be a mistake. All other OS still in stable version, the official webpage says 1.12 is the stable releace. And there is no people in the 1.13 server.

How can i back to the 1.12 version? i have to download and install files from f25? I try to do that but fail on libs dependencies. Try to send an email to fedora mantainer but i get an error from his mail server.

yum should be able to uninstall the beta-test version and install the stable version. I've not used Fedora in well over a decade so I don't recall but I'd expect you'll need to tell yum to NOT automatically upgrade to the testing version. I'd suggest also filing a complaint with Fedora about the issue.